[Prev][Next][Index][Thread]
(meteorobs) Quadrantids before maximum
***************************
NAMN VISUAL SUMMARY REPORT
***************************
DATE: Jan. 02/03, 2001 BEGIN: 20:35 UT END: 22:03 UT
OBSERVER: Jin Zhu (ZHUJI)
LOCATION: Long: 117 d 34' 42" East; Lat: 40 d 23' 47" North
Place: Xinglong, Hebei, CHINA Elevation: 860 m.
RECORDING METHOD: Voice Recorder
---------------------------------------------------------------------
OBSERVED SHOWERS: 3-letter code; radiant position; radiant diameter
QUA ; RA 15h 20m DEC +49d;
---------------------------------------------------------------------
OBSERVING PERIODS: 0 = none seen; / = shower not watched.
PERIOD(UT) FIELD Teff F LM URS SPO
20:35-22:03 RA 13h 30m DEC +55d 1.47 1.05 6.1 12 38
---------------------------------------------------------------------
TOTALS 1.47 12 38 (50)
---------------------------------------------------------------------
MAGNITUDE DISTRIBUTIONS:
SHOWER -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 TOTAL
URS 0 0 0 0 0 0 0 1 1 4 4 2 0 0 12
SPO 0 0 0 0 0 0 0 1 4 6 15 11 1 0 38
---------------------------------------------------------------------
Total 0 0 0 0 0 0 0 2 5 10 19 13 1 0 50
---------------------------------------------------------------------
SKY OBSCURED:
Percentage(%) Duration (UT)
5 20:35-22:03
---------------------------------------------------------------------
DEAD TIME: NONE
BREAKS: NONE
---------------------------------------------------------------------
LIMITING MAGNITUDE:
STAR STAR
TIME AREA COUNT LM
20:41 16 9 5.88
20:42 19 7 6.20
20:44 17 11 5.64
20:47 16 8 5.85
20:49 03 12 5.72
20:56 19 7 6.20
21:05 16 10 6.11
21:11 19 7 6.20
21:14 03 12 5.72
21:24 16 9 5.88
21:47 16 9 5.88
21:57 16 10 6.11
22:03 16 9 5.88
MEAN LIMITING MAGNITUDE: 6.1
---------------------------------------------------------------------
METEOR DATA:
(see Original Records)
VELOCITY (VEL.) SCALE:
0 = Stationary
1 = Very Slow
2 = Slow
3 = Medium
4 = Fast
5 = Very Fast
---------------------------------------------------------------------
REMARKS:
1. It was quite clear with strong winds and -15 degrees C temprature.
2. At 21:20 and 21:21, two satellites came successively in opposite
directions (downward and upward near my field center and the QUA radient).
3. The most weird sighting was some flashings from RA=00:10, Dec=+75 in
21:48 UT (05:48 local time). In fact I realized from the voice recorder
that I already saw some flash in the place at 21:45. 3 minutes later,
when I followed and talked to the recorder about a fast satellite, I felt
some flash at the bottom of my field. As I wondered whether it was an
airplane or a satellite, I saw a flash there (30s after previous one),
then another one (7s after previous). As I was wondering whether it could
be a satellite, I saw a -2 orange/yellow slightly diffused (as I felt)
flash (20s after previous flash) at the same position! It didn't looked
like satellite or airplane! Then I saw an airplane came from the left
bottom side of my field (definately had nothing to do with those flashes)
crossing my field running to 'catch' the previous satellite.
---------------------------------------------------------------------
<END OF REPORT>
Original records:
# TIME(UT) SHOWER MAG SPEED TRAIN(SEC) MEM
20:35 start
20:35 FOV: RA 13h 30m DEC +55d
showers: QUA (15:20, +49)
01 20:37 SPO +4 2
02 20:37 SPO +4 2
03 20:37 SPO +3 2
04 20:39 QUA +3 2
05 20:39 QUA +4 2
06 20:40 QUA +4 3
20:41 LM: 16/9
07 20:42 SPO +2 4
20:42 LM: 19/7
08 20:43 SPO +1 2 1s
09 20:43 SPO +3 1
10 20:43 SPO +4 4
11 20:44 SPO +3 3
20:44 LM: 17/11
12 20:45 SPO +4 2
20:47 LM: 16/8
13 20:47 SPO +1 3 1s
14 20:48 QUA +2 2
15 20:49 SPO +2 1 very long arc
16 20:49 SPO +3 1
20:49 LM: 03/12
17 20:50 SPO +3 1
18 20:51 SPO +0 3 1s
19 20:53 SPO +3 4
20 20:54 SPO +3 3 0.5s
21 20:56 SPO +5 4
20:56 LM: 19/7
22 20:58 SPO +4 4
23 20:59 SPO +2 3
24 21:01 SPO +3 1
25 21:03 SPO +3 2
26 21:03 SPO +3 4
27 21:04 SPO +3 2
21:05 LM: 16/10
28 21:06 QUA +1 1
29 21:08 SPO +3 2
21:11 LM: 19/7
30 21:12 SPO +4 2
31 21:12 QUA +2 3
32 21:13 SPO +2 3 0.5s
21:14 LM: 03/12
33 21:20 QUA +3 2
21:20 satellite SW-->NE +4
21:21 satellite NE-->SW +2
34 21:22 SPO +1 4
21:24 LM: 16/9
21:25 airplane W-->E
35 21:31 SPO +2 5
36 21:32 QUA +3 4
37 21:35 QUA +0 0
38 21:36 QUA +2 4
39 21:36 SPO +3 5
40 21:36 SPO +4 4
21:38 one flash in east (SPO +2 0 ?)
41 21:41 SPO +2 5
42 21:42 SPO +4 3 1s
43 21:43 SPO +1
21:45 flash!
21:47 LM: 16/9
21:48 satellite S-->N +4 fast
21:48 4 flashes!! -2 (4th) near RA=00:10, Dec=+75.
21:49 airplane W-->E
44 21:50 SPO +4 5
45 21:50 SPO +4 5
46 21:53 QUA +2 3
47 21:54 SPO +3 3 0.2s
21:57 LM: 16/10
48 21:57 SPO +4 4
21:59 airplane W-->E
21:59 satellite NW-->SE +3 slow
49 22:00 SPO +3 3
50 22:02 QUA +3 2
22:03 LM: 16/9
22:03 end
--
========================================================================
Jin Zhu | Tel.: +86-10-62751286 (O)
Beijing Astronomical Observatory | +86-314-5520267 (Schmidt dome)
Chinese Academy of Sciences | Pager: +86-10-96301682333
P. R. China | Fax : +86-10-62765031
------------------------------------------------------------------------
Room 2919, No. 2 Science Building, CAS-PKU Beijing Astrophysics Center,
Peking University, Beijing 100871, P. R. CHINA.
------------------------------------------------------------------------
email: zj@bac.pkudot edu.cn http://vega.bac.pkudot edu.cn/~zj
========================================================================
To UNSUBSCRIBE from the 'meteorobs' email list, use the Web form at:
http://www.tiacdot net/users/lewkaren/meteorobs/subscribe.html
Follow-Ups: